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Cannot search by MAC Address using WebSite oui-lookup tool.

asked 2026-05-09 15:49:28 +0000

rjt gravatar image

updated 2026-05-09 16:00:14 +0000

The WireShark Go Deep website oui-lookup tool searches only the descriptive text to the right of the MAC address, but no longer lets one search the MAC address itself. Enter '00:00' and it will not even find a single XEROX entry even though when you search for XEROX, those show up as the first ten entries. Type in '24', it will not find ubiquiti as a manufacturer even though some of their MAC addresses start with 24. Notice, it is only returning text containing '24'.

I often find myself on a machine that i cannot install WireShark such as dedicated network hardware or my smartphone. But want to check possible vendors for a random MAC address on whatever network I am managing. For a decade or so, i went to the wireshark oui lookup tool.

https://www.wireshark.org/tools/oui-lookup.html

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answered 2026-05-09 18:51:04 +0000

Chuckc gravatar image

Search requires three octets. Try 000000 or 00:00:00.

The 2024 version of Oui Lookup seems to behave the same?

OUILookup.astro:

        const parse_mac_address = function (val: string) {
            let m;
            val = val.toLowerCase().replace(/^0x/, "");
            // Accept any sequence of two hexadecimal blocks with an optional
            // separator, with a minimum length of 3 and a maximum of 8.
            // Returns a concatenation of these blocks without separators.
            // Examples:
            // xx:yy:zz or xx-yy-zz, or xx.yy.zz -> xxyyzz
            // aabb.ccdd.eeff -> aabbccddeeff
            if ((m = /^[0-9a-f]{2}(?:[:.-]?[0-9a-f]{2}){2,7}$/.exec(val))) {
                return m[0].replace(/[:.-]/g, "");
            }
            return null;
        };

34: OUI Lookup: Fix various issues with OUI

New OUI Lookup Tool Design - How do you search multiple OUIs at the same time?
43: Revert to previous OUI Lookup tool functionality

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Asked: 2026-05-09 15:49:28 +0000

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Last updated: 9 hours ago